These 10 smartphones will not die on you when you need them the most.

Smartphones have almost become the primary computing device for most consumers today. It is the device we use for alarm and it is also the device we use to make phone calls or send that important email to a work colleague. While smartphones have evolved significantly in the past few years to offer large display in a really compact form factor, battery life remains one of the driving force for most people.

A smartphone might have the best in-class display, performance and camera, but its battery might be underwhelming, making it not suitable for your needs. While battery manufacturers and smartphone OEMs have failed to bring any new technological advancement, there are OEMs that offer mobile devices with large battery, ones that can last for days on a single charge. If you are looking for a smartphone with big battery then here are the 10 best options.

Asus Zenfone Max Pro M1

Asus surprised a lot of people with its Zenfone Max Pro M1, the first smartphone to launch as part of a new partnership with Flipkart. The smartphone counters the conventional wisdom to offer a tall display, latest mid-range processor, dual rear camera setup, and metal unibody design.

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However, its best feature has to be the massive 5,000mAh battery under the hood. Combined with near stock Android that is free of bloatware, the Zenfone Max Pro M1 can go for days on a single charge. Despite all these features, it starts at Rs 10,999, which is not a lot if you care for battery life.

Xiaomi Redmi Note 5 Pro

Xiaomi Redmi Note 5 Pro has emerged as one of the most liked devices in the sub-Rs 15,000 price segment. It offers a modern design with 6-inch display, Snapdragon 636 CPU, dual rear camera setup, and a selfie camera with dedicated LED flash.

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However, Xiaomi has also equipped Redmi Note 5 Pro with 4,000mAh battery that is decently large to last two days for most users. The smartphone also uses power saving features to extend the battery life further.

Xiaomi Redmi Note 5

Xiaomi Redmi Note 5, like the Redmi Note 5 Pro, packs a large 4,000mAh battery. With a power-efficient Snapdragon 625 SoC under the hood, the smartphone is easily one of the go to devices for those looking to buy a powerful mid-range device, and yet retain days long battery life.

Watch: Xiaomi Redmi Note 5, Redmi Note 5 Pro Video Review

Huawei P20 Pro

If you are looking for a flagship smartphone with several days of battery life then you can’t go wrong with the Huawei P20 Pro. The smartphone’s highlight is its Leica-branded triple camera setup but it also packs a 4,000mAh battery.

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Along with a not so pixel-dense display, optimized processor and latest operating system, the Huawei P20 Pro has been found to be last at least two full days on a single charge. With P20 Pro, users can further enhance the battery life by enabling power save features.

Google Pixel 2 XL

There is no definitive device that can be billed as the battery champion. However, the Google Pixel 2 XL shows how a strong optimization between software and hardware can lead to good battery life.

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The Pixel 2 XL packs a smaller 3,650mAh battery, but users have found it to last two days on moderate use case. It uses clever battery management to optimize performance and has doze mode that effectively preserves the battery. With Android P, the battery life could improve further thanks to adaptive battery.

Moto Z2 Force

Moto Z2 Force is a flagship smartphone that does not offer a modern design or a tall display. It overcomes these shortcomings with an incredible battery life. The Moto Z2 Force packs only a modest 2,730mAh battery under the hood, but it comes with battery mod to extend it further.

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The smartphone comes with Moto Turbo Power Pack Mod that adds another 3,490mAh battery to the equation. It is easily the most portable smartphone that also packs a huge battery.

Xiaomi Mi Max 2

Xiaomi Mi Max 3 is right around the corner but one cannot ignore the Mi Max 2 with its massive 5,300mAh battery. It has one of the biggest battery among all smartphones and has little resources to drive like a 6-inch display. It also uses Snapdragon 625 SoC, one of the most power efficient chipset.

Lenovo P2

Lenovo P2 is somewhat hard to find in the market place right now, but it packs a massive 5,100mAh battery. Lenovo’s P-series has been known to last longer than most other smartphones thanks to company’s battery management feature and massive battery.

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The Lenovo P2 is no exception. It has a standby time of 768 hours on 3G and will easily get past two days with heavy use. If you plan to hit the road with no charger for two days this device should be in your travel kit.

Gionee M7 Power

Gionee M7 Power is the latest offering in company’s M series, which was particularly known for offering marathon battery life. The M7 Power packs a large 5,000mAh battery, and is rated to offer 625 hours of standby on 3G. The smartphone makes the cut particularly because of Gionee‘s proven track record to offer a device that particularly offers long battery life.

Oppo F3 Plus

Oppo F3 Plus is getting a special discount of Rs 6,000 on Flipkart, and it also comes with a 4,000mAh battery. Considering it has a 6-inch display with a resolution of 1920×1080 pixels, and a Snapdragon 653 CPU, it is easy to say that the smartphone has far less resources to drive compared to newer devices.